Written by Robert Bailey

What is HackTool.Win32.Cobalt.aij infection?

In this post you will find regarding the definition of HackTool.Win32.Cobalt.aij and its adverse impact on your computer. Such ransomware are a kind of malware that is elaborated by on the internet scams to demand paying the ransom money by a sufferer.

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Most of the situations, HackTool.Win32.Cobalt.aij infection will instruct its sufferers to launch funds move for the function of neutralizing the changes that the Trojan infection has introduced to the sufferer’s tool.

HackTool.Win32.Cobalt.aij Summary

These adjustments can be as complies with:

  • Executable code extraction;
  • Creates RWX memory;
  • Unconventionial binary language: Chinese (Simplified);
  • Unconventionial language used in binary resources: Chinese (Simplified);
  • The binary likely contains encrypted or compressed data.;
  • Crashed cuckoomon during analysis. Report this error to the Github repo.;
  • Network activity detected but not expressed in API logs;
  • Ciphering the papers situated on the sufferer’s hard drive — so the target can no more use the information;
  • Preventing routine accessibility to the sufferer’s workstation;


The most regular channels through which HackTool.Win32.Cobalt.aij are infused are:

  • By methods of phishing emails;
  • As an effect of user winding up on a source that organizes a malicious software;

As quickly as the Trojan is successfully infused, it will certainly either cipher the data on the sufferer’s PC or protect against the gadget from working in a proper fashion – while also placing a ransom money note that states the requirement for the sufferers to impact the payment for the objective of decrypting the papers or restoring the file system back to the first problem. In the majority of circumstances, the ransom note will show up when the client restarts the PC after the system has actually already been damaged.

HackTool.Win32.Cobalt.aij distribution channels.

In numerous corners of the world, HackTool.Win32.Cobalt.aij expands by leaps and also bounds. Nonetheless, the ransom money notes as well as methods of obtaining the ransom quantity might differ relying on specific neighborhood (local) settings. The ransom notes and techniques of obtaining the ransom amount might vary depending on particular local (regional) setups.

Ransomware injection

For example:

    Faulty notifies regarding unlicensed software.

    In specific areas, the Trojans usually wrongfully report having detected some unlicensed applications made it possible for on the sufferer’s gadget. The sharp after that requires the customer to pay the ransom money.

    Faulty statements about prohibited web content.

    In nations where software application piracy is less preferred, this approach is not as effective for the cyber scams. Alternatively, the HackTool.Win32.Cobalt.aij popup alert might incorrectly claim to be originating from a law enforcement organization as well as will certainly report having situated child porn or other illegal information on the gadget.

    HackTool.Win32.Cobalt.aij popup alert may falsely claim to be deriving from a regulation enforcement organization as well as will certainly report having situated child pornography or other illegal data on the device. The alert will in a similar way consist of a requirement for the customer to pay the ransom money.

Technical details

File Info:

crc32: 32F555B5
md5: c0b438d59e1e13107e2955bfe50e183f
name: C0B438D59E1E13107E2955BFE50E183F.mlw
sha1: 13be3cc293334b465e07e630d963b624daeafd96
sha256: 2dddb66cd79654ac9c2ba9b658b0e0665ab62e8eb08dcc89ed4bdc614d4775e9
sha512: fa57aa361c7617a40de071c11f90fedbb3fd075afe30907969df46062c4902fba962d9bdbf44ab4cb7758fea601f1bff546e9a1618f0596f49c60c07233f6cf9
ssdeep: 6144:ulklsHqEpRXM3uJRKzYvpkJbH4EPlXL6G/R1YSf:cklEqSM3uJ1xk9YEPlXL9f
type: PE32 executable (GUI) Intel 80386, for MS Windows

Version Info:

LegalCopyright: Copyright (c)2006-2008 CHENGDU YIWO Tech Development Co., Ltd.
InternalName: ud
FileVersion: 1, 1, 0, 0
CompanyName: CHENGDU YIWO Tech Development Co., Ltd (YIWO Tech Ltd, for short).
ProductVersion: 1, 1, 0, 0
OriginalFilename: ud.exe
Translation: 0x0804 0x04b0

HackTool.Win32.Cobalt.aij also known as:

K7AntiVirusRiskware ( 0040eff71 )
Elasticmalicious (high confidence)
CynetMalicious (score: 100)
CrowdStrikewin/malicious_confidence_100% (W)
K7GWRiskware ( 0040eff71 )
SymantecTrojan Horse
AvastWin32:CrypterX-gen [Trj]
SophosGeneric PUA BD (PUA)
EmsisoftTrojan.GenericKD.46601122 (B)
SentinelOneStatic AI – Malicious PE
MAXmalware (ai score=81)
RisingTrojan.Generic@ML.100 (RDML:G53yvuuHPkDhCQKcka4yog)
AVGWin32:CrypterX-gen [Trj]

How to remove HackTool.Win32.Cobalt.aij virus?

Unwanted application has ofter come with other viruses and spyware. This threats can steal account credentials, or crypt your documents for ransom.
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There is no better way to recognize, remove and prevent PC threats than to use an anti-malware software from GridinSoft2.

Download GridinSoft Anti-Malware.

You can download GridinSoft Anti-Malware by clicking the button below:

Run the setup file.

When setup file has finished downloading, double-click on the setup-antimalware-fix.exe file to install GridinSoft Anti-Malware on your system.

Run Setup.exe

An User Account Control asking you about to allow GridinSoft Anti-Malware to make changes to your device. So, you should click “Yes” to continue with the installation.

GridinSoft Anti-Malware Setup

Press “Install” button.

GridinSoft Anti-Malware Install

Once installed, Anti-Malware will automatically run.

GridinSoft Anti-Malware Splash-Screen

Wait for the Anti-Malware scan to complete.

GridinSoft Anti-Malware will automatically start scanning your system for HackTool.Win32.Cobalt.aij files and other malicious programs. This process can take a 20-30 minutes, so I suggest you periodically check on the status of the scan process.

GridinSoft Anti-Malware Scanning

Click on “Clean Now”.

When the scan has finished, you will see the list of infections that GridinSoft Anti-Malware has detected. To remove them click on the “Clean Now” button in right corner.

GridinSoft Anti-Malware Scan Result

Are Your Protected?

GridinSoft Anti-Malware will scan and clean your PC for free in the trial period. The free version offer real-time protection for first 2 days. If you want to be fully protected at all times – I can recommended you to purchase a full version:

Full version of GridinSoft

Full version of GridinSoft Anti-Malware

If the guide doesn’t help you to remove HackTool.Win32.Cobalt.aij you can always ask me in the comments for getting help.

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  1. GridinSoft Anti-Malware Review from HowToFix site: https://howtofix.guide/gridinsoft-anti-malware/
  2. More information about GridinSoft products: http://gridinsoft.com/products/

About the author

Robert Bailey

Security Engineer. Interested in malware, reverse engineering, white ethical hacking. I like coding, travelling and bikes.

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